Scruffoid wrote:You worry way to much about stuff. Just build it get it running and start enjoying it.
So get off you bum plug it all together on the bike adn show us a picture of the thing put together and your grin of riding it.
+1 I agree with Scruffoid and Aussie Jester... Chopper_elec you worry too much about small stuff.
chopper_elec wrote:Yeah my only issue has been finding a hub motor that will fit in the very wide 175mm dropouts.
Not too big of an issue at all. Even the small BMC/MAC geared hubmotors will fit onto your 175mm dropouts. Just use a nut and stacked washers between the axle shoulders and your dropouts. See... the outer nuts still have the majority of their threads on the axle.
And this is without even squeezing the frame so the distance between the dropouts is shorter by 5-10mm. You can easily do this by reducing the stack of washers between the axle shoulders and your frame's dropouts. So when you finally tighten the outer nuts this will clamp down and squeeze your frame) and eventually narrow down that dropout distance.
It's even easier to get a full sized DD hubmotor (like the 9 Continents motor) to fit as the axles are even longer.
See... those longer axles give plenty of room for the motor to fit in between your 175mm dropouts.
chopper_elec wrote:My only issue is having the tempation to go faster on a cheap bike lol. I was thinking that the 750w or 1000w might be too much amp draw for my lifepo4 48v 16ah battery
Again not really and issue at all. Been there, done that... and many other members have done the same. Unless you've bought a super-cheap, low-quality battery pack from an unknown Chinese vendor, a 16ah pack should be enough to power a 1000w motor/controller setup.
But lets talk about what would happen if you did buy a battery pack that was underpowered for your motor/controller. What's the worst that could happen? You would see voltage sag under heavy heavy acceleration or full-throttle, and have a reduced top speed. Maybe you'll even feel your battery pack warming up. These relatively small problems don't hurt the motor or controller and pretty much goes away once you ease up on the throttle or eventually replace the battery pack with a better (more powerful) one.